Headline: The three dirtiest letters in the GOP primaryLink: https://www.washingtonpost.com/news/wonk/wp/2016/02/19/the-three-dirtiest-letter…Publication Date: Friday, February 19, 2016Primary Source: Washington Post OnlineNon-Cato Author: Max EhrenfreundType: new media postFormat: Newspaper (Online)Nature of Mention: quotedScholar: Mitchell, Daniel J.Research Area: Tax and Budget PolicySubjects: the VAT tax